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Doubles in session


Current system
21242-1253
HJ 5517
18 Aqr


Nearby doubles
6' : 21244-1248
BU 272

20' : 21229-1246
OCC 24

48' : 21223-1213
GWP3053

53' : 21214-1219
HJ 280

64' : 21274-1335
HDS3054

64' : 21279-1326
SCJ 28

70' : 21202-1330
HDS3037

74' : 21274-1349
RST4084

74' : 21192-1247
KPP4232

76' : 21231-1139
RST4083

81' : 21238-1132
BRT2782

91' : 21279-1406
GWP3061

92' : 21233-1122
J 2343

93' : 21289-1354
RST4086

96' : 21177-1252
KPP 489

100' : 21176-1231
KPP2572

101' : 21191-1400
UC 4440

103' : 21249-1435
FOX 260

105' : 21208-1121
OCC 946

109' : 21314-1323
LDS1482

112' : 21274-1112
J 2347

113' : 21275-1112
J 2348

116' : 21246-1057
OCC 945

117' : 21317-1330
SCJ 29

117' : 21200-1113
BRT2781

119' : 21286-1432
LDS1481



Selections
Full WDS
Binocular doubles
Binary Systems
Triple Systems
Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

21242-1253 HJ 5517 (18 Aqr)

 
 
21h 24m 11.44s -12° 52' 41.3" P.A. 312.00 sep 51.3 mag 5.49,13.00 Sp F1V dist. 47.1 pc (153.64 l.y.)
 
 
Coord 2000 21242-1253 Discov num HJ 5517 Comp Coord arcsec 2000 21 24 11.44 -12 52 41.3
Date first 1877 Date last 2010 Obs 5
Pa first 326 Pa last 311.9 P.A. Now (θ) 311.9°
Sep first 47.8 Sep last 51.29 Sep. Now (ρ) 51.29"
Mag pri 5.49 Mag sec 13.00 delta mag (ΔM) 7.51 Spectral class F1V (yellow-white)
Pri motion ra +090 Sec motion ra +018
Pri motion dec +009 Sec motion dec -027
Notes N (See Notes)
rPM=0.89
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 18 Aqr Var name NSV13684 Aqr Constellation Aquarius SAO 164364
HIP 105668 Tycho2 5781-01173-1 Gaia DR2 6890965518204449536 HD 203705
HR 8187 GC 29957 BD BD-13 5923 Flamsteed 18 Aquarii
Flamsteed name 18 Aqr FK5 1562 Distance 47.1 Distance ly 153.64
 
 
WDS 21242-1253 HJ 5517 (18 Aqr) : NOTES
 
 
discov_num notes refcode
HJ 5517 18 Aqr.
 
 
REFERENCES
 
 
refcode metd author reference
HJ_1826 Mb - Herschel, J.F.W. 1826MmRAS...2..459H
HJ_1826 MemRAS 2, 459, 1826
HJ_1829a Mb - Herschel, J.F.W. 1829MmRAS...3...47H
HJ_1829a MemRAS 3, 47, 1829
HJ_1829b Mb - Herschel, J.F.W. 1829MmRAS...3..177H
HJ_1829b MemRAS 3, 177, 1829
HJ_1831 Ma - Herschel, J.F.W. 1831MmRAS...4..331H
HJ_1831 +Mb MemRAS 4, part 2, 331, 1831
HJ_1833a Ma - Herschel, J.F.W. 1833MmRAS...5...13H
HJ_1833a +Mb MemRAS 5, 13, 1833
HJ_1833b orb - Herschel, J.F.W. 1833MmRAS...5..171H
HJ_1833b MemRAS 5, 171, 1833
HJ_1833c Mb - Herschel, J.F.W. 1833MmRAS...6....1H
HJ_1833c MemRAS 6, 1, 1833
HJ_1833d orb - Herschel, J.F.W. 1833MmRAS...6..149H
HJ_1833d MemRAS 6, 149, 1833
HJ_1835 Ma - Herschel, J.F.W. 1835MmRAS...8...37H
HJ_1835 +Mb MemRAS 8, 37, 1835
HJ_1836 Mb - Herschel, J.F.W. 1836MmRAS...9..193H
HJ_1836 MemRAS 9, 193, 1836
HJ_1847a Ma j Herschel, J.F.W. .
HJ_1847a +Mb Cape Results, London, 1847 (Cape of Good Hope Astronomical Observations 1834-1838)
HJ_1847b Ma j Herschel, J.F.W. .
HJ_1847b Cape Results, London, 1847
HJ_1850 orb - Herschel, J.F.W. 1850MmRAS..18...47H
HJ_1850 MemRAS 18, 47, 1850
HJ_1870 Mb - Herschel, J.F.W. 1870MmRAS..38....1H
HJ_1870 MemRAS 38, 1, 1870
HJ_1874A - Herschel, J.F.W. 1874MNRAS..35...28B
HJ_1874A cited by Burnham (MNRAS 35, 28, 1874)
HJ_1875A Ma - Herschel, J.F.W. 1875AN.....85..323D
HJ_1875A +Mb cited by Doberck, 1875 (see Dob1875b,f,g,h)
HJ_1880A Ma - Herschel, J.F.W. 1880Obs.....3..508G
HJ_1880A +Mb cited by Gledhill (Obs 3, 508, 1880)
HJ_1880B Mb - Herschel, J.F.W. 1880MNRAS..40..497B
HJ_1880B cited by Burnham (MNRAS 40, 497, 1880)
HJ_1897A Ma j Herschel, J.F.W. 1897MNRAS..57..541S
HJ_1897A cited by See (MNRAS 57, 541, 1897)
HJ_1905A Ma - Herschel, J.F.W. 1905LicOB...3..147A
HJ_1905A +Mb cited by Aitken (Lick Obs. Bull. 3, 147, 1905)
HJ_1906A Ma - Herschel, J.F.W. 1906MmRAS..56....1L
HJ_1906A +Mb cited by Lewis (MemRAS 56, 1, 1906)
HJ_1906B Ma - Herschel, J.F.W. 1906QB821.B972.....
HJ_1906B +Mb cited in BDS (Burnham Double Star Cat.), 1906
HJ_1927A Mb - Herschel, J.F.W. 1927sdsc.book......
HJ_1927A cited in SDS (Southern Double Star Catalog), 1927
HJ_1932A Mb - Herschel, J.F.W. 1932QB821.A43......
HJ_1932A cited in ADS (Aitken Double Star Cat.), 1932
HJ_9999 M j Herschel, J.F.W. ...................
HJ_9999 +Ma Unpublished, manuscript or reference not found.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21242-1253 HJ 5517 1998 3 313 51.1 5.49 13.00 F1V N D 212411.44-125241.3
21242-1253 HJ 5517 2000 4 312 50.5 5.49 13.00 F1V N D 212411.44-125241.3
21242-1253 HJ 5517 2010 5 312 51.2 5.49 13.00 F1V N 212411.44-125241.3

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 21242-1253 HJ 5517 (18 Aqr) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21242-1253 HJ 5517 (18 Aqr) : MEASURES
 
 
No records found.

 
 
WDS 21242-1253 (18 Aqr) : VIRTUAL EYEPIECE
 
 

21242-1253 HJ 5517A mag 5.49 Sp F1V 21242-1253 HJ 5517B sep 50.6 P.A. 312.60 mag 13 virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 21242-1253 (18 Aqr) : ALADIN DSS IMAGE @ 21h 24m 11.44s -12° 52' 41.3"
 
 
 
 
WDS 21242-1253 HJ 5517 (18 Aqr) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21242-1253 HJ 5517 distance=0' 21244-1248 BU 272 distance=6' 21229-1246 OCC 24 distance=20' 21223-1213 GWP3053 distance=48' 21214-1219 HJ 280 distance=53' 21274-1335 HDS3054 distance=64' 21279-1326 SCJ 28 distance=64' 21202-1330 HDS3037 distance=70' 21274-1349 RST4084 distance=74' 21192-1247 KPP4232 distance=74' 21231-1139 RST4083 distance=76' 21238-1132 BRT2782 distance=81' 21279-1406 GWP3061 distance=91' 21233-1122 J 2343 distance=92' 21289-1354 RST4086 distance=93' 21177-1252 KPP 489 distance=96' 21176-1231 KPP2572 distance=100' 21191-1400 UC 4440 distance=101' 21249-1435 FOX 260 distance=103' 21208-1121 OCC 946 distance=105' 21314-1323 LDS1482 distance=109' 21274-1112 J 2347 distance=112' 21275-1112 J 2348 distance=113' 21246-1057 OCC 945 distance=116' 21317-1330 SCJ 29 distance=117' 21200-1113 BRT2781 distance=117' 21286-1432 LDS1481 distance=119' 21160-1312 YSC 118 distance=122' 21223-1455 BU 1262 distance=126' 21211-1055 RST4694 distance=127' 21281-1450 RST4085 distance=131' 21237-1042 OCC 944 distance=131' 21152-1305 OCC 972 distance=132' 21288-1450 LDS 745 distance=136' 21278-1049 HJ 283 distance=136' 21203-1048 HU 86AB distance=138' 21203-1048 FOX9016AC distance=138' 21193-1055 ZIE 14 distance=139' 21244-1033 CVR 242 distance=140' 21151-1340 KPP3124 distance=141' 21338-1329 GWP3074 distance=146' 21152-1145 LDS1479 distance=148' 21145-1207 BRT2780 distance=149' 21345-1316 RST4089 distance=153' 21137-1249 OCC 974 distance=155' 21155-1424 OCC 589 distance=157' 21334-1412 KPP2339 distance=157' 21340-1146 OCC 580 distance=159' 21141-1155 TDT2845 distance=159' 21133-1246 GWP3046 distance=161' 21131-1247 OCC 973 distance=163' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 21242-1253 HJ 5517 312 51.3
Show 21244-1248 BU 272 256 4.8 6
Show 21229-1246 OCC 24 -1 0.1 20
Show 21223-1213 GWP3053 165 26.9 48
Show 21214-1219 HJ 280 211 47.8 53
Show 21274-1335 HDS3054 357 0.1 64
Show 21279-1326 SCJ 28 134 3.0 64
Show 21202-1330 HDS3037 157 0.3 70
Show 21274-1349 RST4084 153 0.3 74
Show 21192-1247 KPP4232 259 2.2 74
Show 21231-1139 RST4083 359 0.7 76
Show 21238-1132 BRT2782 215 3.0 81
Show 21279-1406 GWP3061 265 42.1 91
Show 21233-1122 J 2343 173 7.5 92
Show 21289-1354 RST4086 169 0.5 93
Show 21177-1252 KPP 489 3 3.9 96
Show 21176-1231 KPP2572 167 23.3 100
Show 21191-1400 UC 4440 42 15.4 101
Show 21249-1435 FOX 260 30 11.0 103
Show 21208-1121 OCC 946 -1 0.0 105
Show 21314-1323 LDS1482 102 3.3 109
Show 21274-1112 J 2347 33 14.1 112
Show 21275-1112 J 2348 38 9.4 113
Show 21246-1057 OCC 945 -1 0.0 116
Show 21317-1330 SCJ 29 292 58.3 117
Show 21200-1113 BRT2781 134 5.3 117
Show 21286-1432 LDS1481 89 3.3 119
Show 21160-1312 YSC 118 252 0.5 122
Show 21223-1455 BU 1262 109 1.9 126
Show 21211-1055 RST4694 14 0.5 127
Show 21281-1450 RST4085 279 1.1 131
Show 21237-1042 OCC 944 -1 0.0 131
Show 21152-1305 OCC 972 -1 0.1 132
Show 21288-1450 LDS 745 81 14.3 136
Show 21278-1049 HJ 283 72 9.6 136
Show 21203-1048 HU 86 AB 240 4.3 138
Show 21203-1048 FOX9016 AC 203 41.8 138
Show 21193-1055 ZIE 14 76 4.4 139
Show 21244-1033 CVR 242 35 114.4 140
Show 21151-1340 KPP3124 108 6.2 141
Show 21338-1329 GWP3074 247 45.2 146
Show 21152-1145 LDS1479 242 2.0 148
Show 21145-1207 BRT2780 347 3.4 149
Show 21345-1316 RST4089 32 1.2 153
Show 21137-1249 OCC 974 -1 0.2 155
Show 21155-1424 OCC 589 -1 0.2 157
Show 21334-1412 KPP2339 129 20.0 157
Show 21340-1146 OCC 580 -1 0.0 159
Show 21141-1155 TDT2845 64 0.5 159
Show 21133-1246 GWP3046 353 23.7 161
Show 21131-1247 OCC 973 -1 0.1 163

 
 
WDS 21242-1253 : COMPONENTS
 
 
  A
B pa=312.6°
sep=50.58"
 
 
21242-1253 A
 
 
Componente originario normalizzato AB Name 18 Aqr Coord arcsec 2000 212411.44-125241.3 Mag 5.49
Spectral class F1V (yellow-white) PmRA 90.00 PmDE 9.0 SAO 164364
HIP 105668 Tycho2 5781-01173-1 HD 203705 HR 8187
GC 29957 BD BD-13 5923 Flamsteed 18 Aquarii Flamsteed name 18 Aqr
FK5 1562
Tycho2
Tycho2 5781-01173-1 Pflag RAmdeg 321.04788888 DEmdeg -12.87810810
PmRA 91.1 PmDE 9.3 E RAmdeg 3 E DEmdeg 4
E pmRA 0.6 E pmDE 0.6 EpRAm 1991.21 EpDEm 1990.50
Num 24 Q RAmdeg 0.7 Q DEmdeg 0.5 Q pmRA 0.7
Q pmDE 0.5 BTmag 5.819 E BTmag 0.014 VTmag 5.512
E VTmag 0.009 Prox 999 TYC T HIP 105668
CCDM RAdeg 321.04767333 DEdeg -12.87813028 EpRA 1990 1.70
EpDE 1990 1.25 E RAdeg 3.4 E DEdeg 3.8 Posflg
Corr -0.2
SAO
SAO 164364 DelFlag RA1950 PmRA1950 0.006
DE1950 PmDE1950 0.009 Vmag 5.5 SpType A5
Double code Source 74 CatNum 1562 DM BD-13 5923
DMcomp BDsup HD 203705 M HD 0
GC 29957 RA1950rad 5.59142752 DE1950rad -0.22852884 PmRA2000 0.0062
PmDE2000 0.007
Hipparcos
Catalog H HIP 105668 Proxy RAhms 21 24 11.44
DEdms -12 52 41.3 Vmag 5.48 VarFlag R Vmag G
RAdeg 321.048 DEdeg -12.8781 AstroRef Plx 20.8
CCDM 21242-1253 N CCDM I Nsys 1 Ncomp 1
MultFlag Source Qual M HIP
Theta Rho HD 203705 BD BD-13 5923
CD CP Dm number -13 5923 VIred 0.34
SpType F0V R SpType Coord arcsec 2000 212411.44-125241.3
Hipparcos 2
HIP 105668 Sn 5 So 0 Nc 1
RArad 5.6033387262 DErad -0.2247657708 Plx 21.23 PmRA 89.6
PmDE 8.62 E RArad 0.28 E DErad 0.18 E Plx 0.29
E pmRA 0.46 E pmDE 0.22 Hpmag 5.5576 E Hpmag 0.0006
SHp 0.005 VA 0 BV 0.297 E BV 0.005
VI 0.34
CCDM
Ccdm 21242-1253 RComp Comp A Note1
Note2 Discov num DRAs -0.50 DDEs 18.8
R dRAs 10 Year Theta Rho
Obs 2 Vmag 5.5 Sp A5 PmNote *
PmRA 88 PmDE 9 Dm number -13 5923 Cat1 BD
Name2 164364 Cat2 SAO HD 203705 M HD
ADS BDS B10945 M ADS BDS N IDS IDS 21187S1318A
HIC 105668
 
 
21242-1253 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 212408.89-125207.0 Mag 13 PmRA 18.00
PmDE -27.0 Calc delta mag 7.51 Calc coord yes
CCDM
Ccdm 21242-1253 RComp Comp B Note1
Note2 Discov num HJ 5517 DRAs DDEs
R dRAs Year 1912 Theta 321 Rho 48.9
Obs 2 Vmag 13.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS B10945 M ADS BDS N IDS IDS 21187S1318B
HIC